Buckled up in a long, blue coat Catherine, Duchess of Cambridge smiles as she meets the gathered crowds in Seymour Square during the Royal Tour to New Zealand on April 10, 2014 in Blenheim, New Zealand.

The Duchess, with New Zealand Prime Minister John Key, looks sophisticated in a black dress with shoulder embellishment as she attends an art unveiling of a portrait of Queen Elizabeth II by New Zealand artist Nick Cuthell on April 10, 2014.

Photo: Pool, Getty Images

The Duchess, with New Zealand Prime Minister John Key, looks...

The Duchess, with New Zealand Prime Minister John Key, looks... Photo-6217245.84603 - SFGate

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Kate Middleton brightens up a gloomy day in bold green on April 12, 2014 in Cambridge, New Zealand.

Photo: Phil Walter, Getty Images

Kate Middleton brightens up a gloomy day in bold green on April 12,...

Kate Middleton brightens up a gloomy day in bold green on April 12,... Photo-6217246.84603 - SFGate

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Kate can do casual, too! The Duchess and All Black player Ritchie McCaw watch 'Rippa Rugby' in the Forstyth Barr Stadium on April 13, 2014 in Dunedin, New Zealand.

Photo: Chris Jackson, Getty Images

Kate can do casual, too! The Duchess and All Black player Ritchie...

Kate can do casual, too! The Duchess and All Black player Ritchie... Photo-6217248.84603 - SFGate

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Catherine, Duchess of Cambridge visits the Amisfield Winery wearing a wedge/blazer combo on April 13, 2014 in Queenstown New Zealand.

The Duchess waves to members of the crowd as she arrives with Prince William at the Playford Civic Centre in the Adelaide suburb of Elizabeth on April 23, 2014 in Adelaide, Australia. In typical Middleton style, another skirt suit, this time in pale pink with pleats.

Photo: Pool, Getty Images

The Duchess waves to members of the crowd as she arrives with...

The Duchess waves to members of the crowd as she arrives with... Photo-6217258.84603 - SFGate

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Catherine, Duchess of Cambridge waves to well-wishers at the Parliament House on April 24, 2014 in Canberra, Australia.

Middleton's updo is a nice touch with her Lela Rose dress she wore during a reception hosted by the Governor General Peter Cosgrove and Her excellency Lady Cosgrove at Government House on April 24, 2014 in Canberra, Australia. The lace sleeves and trim around the waist are perfect.

The royal couple keep things formal even upon their exit: Catherine, Duchess of Cambridge, Prince William, Duke of Cambridge and Prince George of Cambridge leave Fairbairne Airbase as they head back to the UK after finishing their Royal Visit to Australia on April 25, 2014 in Canberra, Australia.

Photo: Mark Nolan, Getty Images

The royal couple keep things formal even upon their exit:...

The royal couple keep things formal even upon their exit:... Photo-6217261.84603 - SFGate